<template>
  <div class="container">
    <div class="app-container">
      <el-card>
        <!-- 参数：参数 1，pid，如果是页面级别的权限，固定是 0 -->
        <!-- 参数 2 表示类型，页面级别的就是 1，按钮级别的就是 2 -->
        <el-button class="btn-add" size="mini" type="primary" @click="addPermission(0, 1)">添加权限</el-button>
        <!-- //!row-id 是优化渲染的，如果想用树的形式展示必须指定 -->
        <el-table :data="list" row-key="id">
          <el-table-column label="名称" prop="name" />
          <el-table-column label="标识" prop="code" />
          <el-table-column label="描述" prop="description" />
          <el-table-column label="操作">
            <template #default="{row}">
              <el-button v-if="row.type === 1" size="mini" type="text" @click="addPermission(row.id, 2)">添加</el-button>
              <el-button size="mini" type="text" @click="editPerm(row.id)">编辑</el-button>
              <el-button size="mini" type="text" @click="delPermission(row.id)">删除</el-button>
            </template>
          </el-table-column>
        </el-table>
      </el-card>
      <!-- 放置一个弹层 用来编辑新增节点 -->
      <el-dialog :title="`${showText}权限点`" :visible="showDialog" @close="btnCancel">
        <!-- 表单 -->
        <el-form ref="perForm" :model="formData" :rules="rules" label-width="120px">
          <el-form-item label="权限名称" prop="name">
            <el-input v-model="formData.name" style="width:90%" />
          </el-form-item>
          <el-form-item label="权限标识" prop="code">
            <el-input v-model="formData.code" style="width:90%" />
          </el-form-item>
          <el-form-item label="权限描述">
            <el-input v-model="formData.description" style="width:90%" />
          </el-form-item>
          <el-form-item label="开启">
            <el-switch v-model="formData.enVisible" active-value="1" inactive-value="0" />
          </el-form-item>
        </el-form>
        <el-row slot="footer" type="flex" justify="center">
          <el-col :span="6">
            <el-button size="small" type="primary" @click="btnOK">确定</el-button>
            <el-button size="small" @click="btnCancel">取消</el-button>
          </el-col>
        </el-row>
      </el-dialog>
    </div>
  </div>
</template>
<script>
import { addPermission, delPermission, getPermissionDetail, getPermissionList, updatePermission } from '@/api/permission'
import { transListToTreeData } from '@/utils'
export default {
  name: 'Permission',
  data() {
    return {
      list: [],
      formData: {
        name: '', // 名称
        code: '', // 标识
        description: '', // 描述
        type: '', // 类型，该类型不需要显示，点击添加的时候直接传递接口（路由级别的权限为 1，按钮级别的为 2）
        pid: '', // 因为做的是树，需要知道添加到哪个节点下了
        enVisible: '0' // 默认关闭
      },
      rules: {
        name: [{
          required: true,
          message: '权限名称不能为空',
          trigger: 'blur'
        }],
        code: [{
          required: true,
          message: '权限标识不能为空',
          trigger: 'blur'
        }]
      },
      showDialog: false
    }
  },
  computed: {
    showText() {
      return this.formData.id ? '编辑' : '新增'
    }
  },
  created() {
    this.getPermissionList()
  },
  methods: {
    async editPerm(id) {
      this.formData = await getPermissionDetail(id)
      this.showDialog = true
    },
    async getPermissionList() {
      this.list = transListToTreeData(await getPermissionList(), 0)
    },
    addPermission(pid, type) {
      this.formData.pid = pid
      this.formData.type = type
      this.showDialog = true
    },
    btnOK() {
      this.$refs.perForm.validate(async isOk => {
        if (isOk) {
          if (this.formData.id) {
            // 编辑
            await updatePermission(this.formData)
          } else {
            // 添加
            await addPermission(this.formData)
          }
          this.getPermissionList()
          this.$message.success((this.formData.id ? '编辑' : '添加') + '成功')

          this.btnCancel()
        }
      })
    },
    btnCancel() {
      this.formData = {
        name: '', // 名称
        code: '', // 标识
        description: '', // 描述
        type: '', // 类型，该类型不需要显示，点击添加的时候直接传递接口（路由级别的权限为 1，按钮级别的为 2）
        pid: '', // 因为做的是树，需要知道添加到哪个节点下了
        enVisible: '0' // 默认关闭
      }
      this.$refs.perForm.resetFields()
      this.showDialog = false
    },
    async delPermission(id) {
      try {
        await this.$confirm('确定要删除该数据吗')
        await delPermission(id)
        this.getPermissionList()
        this.$message.success('删除成功')
      } catch (error) {
        console.log(error)
      }
    }
  }
}
</script>
<style>
    .btn-add {
        margin: 10px;
    }
</style>
